Like last year, I am taking part in the advent of code 2021. All my solution are opensource and free to reuse. I am doing it in Javascript this year too.
Impossible is not JS !
Take a look at https://github.com/Slashgear/advent-of-code
Project is a lerna monorepo structure showing solution by years and days.
packages/
2019/
day-1/
..
day-2/
..
2021/
day-1/
..
day-2/
..
day-3/
..
day-4/
..
..
For now, you can find solution for: